soc/intel: Drop romstage_after_car()

Platforms moved to POSTCAR_STAGE so these are no longer used.

Change-Id: I9a7b5a1f29b402d0e996f2c2f8c6db3800cdddf3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30387
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/cpu/intel/car/romstage.c

@@ -58,9 +58,3 @@ asmlinkage void *romstage_main(unsigned long bist)
 	/* We do not return. */
 	return NULL;
 }
-
-asmlinkage void romstage_after_car(void)
-{
-	/* Load the ramstage. */
-	run_ramstage();
-}